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        data-chapter-title="有缘网分布式爬虫项目2"
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                        传智播客Python学院爬虫课程
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                            <b>1.</b>
                        
                        爬虫原理与数据抓取
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                            <b>1.1.</b>
                        
                        (了解)通用爬虫和聚焦爬虫
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                            <b>1.2.</b>
                        
                        (复习)HTTP/HTTPS的请求与响应
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                            <b>1.3.</b>
                        
                        HTTP/HTTPS抓包工具-Fiddler
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                            <b>1.4.</b>
                        
                        urllib2模块的基本使用
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                            <b>1.5.</b>
                        
                        urllib2：GET请求和POST请求
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                            <b>1.6.</b>
                        
                        urllib2：Handler处理器和自定义Opener
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                            <b>1.7.</b>
                        
                        urllib2：URLError与HTTPError
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                            <b>1.8.</b>
                        
                        Requests模块
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                            <b>2.</b>
                        
                        非结构化数据与结构化数据提取
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                            <b>2.1.</b>
                        
                        正则表达式re模块
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                            <b>2.2.</b>
                        
                        案例：使用正则表达式的爬虫
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                            <b>2.3.</b>
                        
                        XPath与lxml类库
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                            <b>2.4.</b>
                        
                        案例：使用XPath的爬虫
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                            <b>2.5.</b>
                        
                        BeautifulSoup4 解析器
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                            <b>2.6.</b>
                        
                        案例：使用bs4的爬虫
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                            <b>2.7.</b>
                        
                        JSON模块与JsonPath
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                            <b>2.8.</b>
                        
                        糗事百科案例
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                            <b>2.9.</b>
                        
                        多线程爬虫案例
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                            <b>3.</b>
                        
                        动态HTML处理和机器图像识别
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                            <b>3.1.</b>
                        
                        动态HTML介绍
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                            <b>3.2.</b>
                        
                        Selenium与PhantomJS
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                            <b>3.3.</b>
                        
                        案例一：网站模拟登录
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                            <b>3.4.</b>
                        
                        案例二：动态页面模拟点击
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                            <b>3.5.</b>
                        
                        案例三：执行JavaScript语句
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                            <b>3.6.</b>
                        
                        机器视觉与Tesseract介绍
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                            <b>3.7.</b>
                        
                        处理一些格式规范的文字
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                            <b>3.8.</b>
                        
                        案例：尝试对验证码进行机器识别处理
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                            <b>3.9.</b>
                        
                        机器学习：训练Tesseract
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                            <b>4.</b>
                        
                        Scrapy框架
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                            <b>4.1.</b>
                        
                        配置安装
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                            <b>4.2.</b>
                        
                        入门案例
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                            <b>4.3.</b>
                        
                        Scrapy Shell
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                            <b>4.4.</b>
                        
                        Item Pipeline
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                            <b>4.5.</b>
                        
                        Spiders
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                            <b>4.6.</b>
                        
                        CrawlSpiders
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                            <b>4.7.</b>
                        
                        Request/Response
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                            <b>4.8.</b>
                        
                        Downloader Middlewares
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                            <b>4.9.</b>
                        
                        Settings
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                            <b>5.</b>
                        
                        Scrapy实战项目
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                            <b>5.1.</b>
                        
                        (案例一)手机App抓包爬虫
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                            <b>5.2.</b>
                        
                        (案例二)阳光热线问政平台爬虫
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                            <b>5.3.</b>
                        
                        (案例三)新浪网分类资讯爬虫
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                            <b>5.4.</b>
                        
                        (案例四)图片下载器爬虫
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                            <b>5.5.</b>
                        
                        (案例五)将数据保存在MongoDB中
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                            <b>5.6.</b>
                        
                        (案例六)三种scrapy模拟登陆策略
                    </a>
            
            
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        <li class="chapter " data-level="5.7" data-path="file/part05/5.7.html">
            
                
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                            <b>5.7.</b>
                        
                        附：通过Fiddler进行手机抓包方法
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                            <b>6.</b>
                        
                        scrapy-redis分布式组件
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                            <b>6.1.</b>
                        
                        源码分析参考：Connection
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                            <b>6.2.</b>
                        
                        源码分析参考：Dupefilter
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        <li class="chapter " data-level="6.3" data-path="file/part06/6.3.html">
            
                
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                            <b>6.3.</b>
                        
                        源码分析参考：Picklecompat
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        <li class="chapter " data-level="6.4" data-path="file/part06/6.4.html">
            
                
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                            <b>6.4.</b>
                        
                        源码分析参考：Pipelines
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        <li class="chapter " data-level="6.5" data-path="file/part06/6.5.html">
            
                
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                            <b>6.5.</b>
                        
                        源码分析参考：Queue
                    </a>
            
            
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        <li class="chapter " data-level="6.6" data-path="file/part06/6.6.html">
            
                
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                            <b>6.6.</b>
                        
                        源码分析参考：Scheduler
                    </a>
            
            
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        <li class="chapter " data-level="6.7" data-path="file/part06/6.7.html">
            
                
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                            <b>6.7.</b>
                        
                        源码分析参考：Spider
                    </a>
            
            
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                            <b>7.</b>
                        
                        scrapy-redis实战
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="7.1" data-path="file/part07/7.1.html">
            
                
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                            <b>7.1.</b>
                        
                        源码自带项目说明
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        <li class="chapter " data-level="7.2" data-path="file/part07/7.2.html">
            
                
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                            <b>7.2.</b>
                        
                        有缘网分布式爬虫项目1
                    </a>
            
            
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        <li class="chapter active" data-level="7.3" data-path="file/part07/7.3.html">
            
                
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                            <b>7.3.</b>
                        
                        有缘网分布式爬虫项目2
                    </a>
            
            
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        <li class="chapter " data-level="7.4" data-path="file/part07/7.4.html">
            
                
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                            <b>7.4.</b>
                        
                        处理Redis里的数据
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="7.5" data-path="file/part07/7.5.html">
            
                
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                            <b>7.5.</b>
                        
                        尝试改写新浪网分类资讯爬虫1
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        <li class="chapter " data-level="7.6" data-path="file/part07/7.6.html">
            
                
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                            <b>7.6.</b>
                        
                        尝试改写新浪网分类资讯爬虫2
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                            <b>7.7.</b>
                        
                        IT桔子分布式项目1
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                            <b>7.8.</b>
                        
                        IT桔子分布式项目2
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                        课余段子
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                        <h1 id="&#x6709;&#x7F18;&#x7F51;&#x5206;&#x5E03;&#x5F0F;&#x722C;&#x866B;&#x6848;&#x4F8B;&#xFF1A;">&#x6709;&#x7F18;&#x7F51;&#x5206;&#x5E03;&#x5F0F;&#x722C;&#x866B;&#x6848;&#x4F8B;&#xFF1A;</h1>
<h2 id="&#x4FEE;&#x6539;-spidersyouyuanpy">&#x4FEE;&#x6539; spiders/youyuan.py</h2>
<p>&#x5728;spiders&#x76EE;&#x5F55;&#x4E0B;&#x589E;&#x52A0;youyuan.py&#x6587;&#x4EF6;&#x7F16;&#x5199;&#x6211;&#x4EEC;&#x7684;&#x722C;&#x866B;&#xFF0C;&#x4F7F;&#x5176;&#x5177;&#x6709;&#x5206;&#x5E03;&#x5F0F;&#xFF1A;</p>
<pre><code class="lang-python">
<span class="hljs-comment"># -*- coding:utf-8 -*-</span>

<span class="hljs-keyword">from</span> scrapy.linkextractors <span class="hljs-keyword">import</span> LinkExtractor
<span class="hljs-comment">#from scrapy.spiders import CrawlSpider, Rule</span>

<span class="hljs-comment"># 1. &#x5BFC;&#x5165;RedisCrawlSpider&#x7C7B;&#xFF0C;&#x4E0D;&#x4F7F;&#x7528;CrawlSpider</span>
<span class="hljs-keyword">from</span> scrapy_redis.spiders <span class="hljs-keyword">import</span> RedisCrawlSpider
<span class="hljs-keyword">from</span> scrapy.spiders <span class="hljs-keyword">import</span> Rule


<span class="hljs-keyword">from</span> scrapy.dupefilters <span class="hljs-keyword">import</span> RFPDupeFilter
<span class="hljs-keyword">from</span> example.items <span class="hljs-keyword">import</span> youyuanItem
<span class="hljs-keyword">import</span> re

<span class="hljs-comment"># 2. &#x4FEE;&#x6539;&#x7236;&#x7C7B; RedisCrawlSpider</span>
<span class="hljs-comment"># class YouyuanSpider(CrawlSpider):</span>
<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">YouyuanSpider</span><span class="hljs-params">(RedisCrawlSpider)</span>:</span>
    name = <span class="hljs-string">&apos;youyuan&apos;</span>

<span class="hljs-comment"># 3. &#x53D6;&#x6D88; allowed_domains() &#x548C; start_urls</span>
<span class="hljs-comment">##### allowed_domains = [&apos;youyuan.com&apos;]</span>
<span class="hljs-comment">##### start_urls = [&apos;http://www.youyuan.com/find/beijing/mm18-25/advance-0-0-0-0-0-0-0/p1/&apos;]</span>

<span class="hljs-comment"># 4. &#x589E;&#x52A0;redis-key</span>
    redis_key = <span class="hljs-string">&apos;youyuan:start_urls&apos;</span>

    list_page_lx = LinkExtractor(allow=(<span class="hljs-string">r&apos;http://www.youyuan.com/find/.+&apos;</span>))
    page_lx = LinkExtractor(allow =(<span class="hljs-string">r&apos;http://www.youyuan.com/find/beijing/mm18-25/advance-0-0-0-0-0-0-0/p\d+/&apos;</span>))
    profile_page_lx = LinkExtractor(allow=(<span class="hljs-string">r&apos;http://www.youyuan.com/\d+-profile/&apos;</span>))

    rules = (
        Rule(list_page_lx, follow=<span class="hljs-keyword">True</span>),
        Rule(page_lx, follow=<span class="hljs-keyword">True</span>),
        Rule(profile_page_lx, callback=<span class="hljs-string">&apos;parse_profile_page&apos;</span>, follow=<span class="hljs-keyword">False</span>),
    )

<span class="hljs-comment"># 5. &#x589E;&#x52A0;__init__()&#x65B9;&#x6CD5;&#xFF0C;&#x52A8;&#x6001;&#x83B7;&#x53D6;allowed_domains()</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__init__</span><span class="hljs-params">(self, *args, **kwargs)</span>:</span>
        domain = kwargs.pop(<span class="hljs-string">&apos;domain&apos;</span>, <span class="hljs-string">&apos;&apos;</span>)
        self.allowed_domains = filter(<span class="hljs-keyword">None</span>, domain.split(<span class="hljs-string">&apos;,&apos;</span>))
        super(youyuanSpider, self).__init__(*args, **kwargs)

    <span class="hljs-comment"># &#x5904;&#x7406;&#x4E2A;&#x4EBA;&#x4E3B;&#x9875;&#x4FE1;&#x606F;&#xFF0C;&#x5F97;&#x5230;&#x6211;&#x4EEC;&#x8981;&#x7684;&#x6570;&#x636E;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">parse_profile_page</span><span class="hljs-params">(self, response)</span>:</span>
        item = youyuanItem()
        item[<span class="hljs-string">&apos;header_url&apos;</span>] = self.get_header_url(response)
        item[<span class="hljs-string">&apos;username&apos;</span>] = self.get_username(response)
        item[<span class="hljs-string">&apos;monologue&apos;</span>] = self.get_monologue(response)
        item[<span class="hljs-string">&apos;pic_urls&apos;</span>] = self.get_pic_urls(response)
        item[<span class="hljs-string">&apos;age&apos;</span>] = self.get_age(response)
        item[<span class="hljs-string">&apos;source&apos;</span>] = <span class="hljs-string">&apos;youyuan&apos;</span>
        item[<span class="hljs-string">&apos;source_url&apos;</span>] = response.url

        <span class="hljs-keyword">yield</span> item

    <span class="hljs-comment"># &#x63D0;&#x53D6;&#x5934;&#x50CF;&#x5730;&#x5740;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get_header_url</span><span class="hljs-params">(self, response)</span>:</span>
        header = response.xpath(<span class="hljs-string">&apos;//dl[@class=\&apos;personal_cen\&apos;]/dt/img/@src&apos;</span>).extract()
        <span class="hljs-keyword">if</span> len(header) &gt; <span class="hljs-number">0</span>:
            header_url = header[<span class="hljs-number">0</span>]
        <span class="hljs-keyword">else</span>:
            header_url = <span class="hljs-string">&quot;&quot;</span>
        <span class="hljs-keyword">return</span> header_url.strip()

    <span class="hljs-comment"># &#x63D0;&#x53D6;&#x7528;&#x6237;&#x540D;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get_username</span><span class="hljs-params">(self, response)</span>:</span>
        usernames = response.xpath(<span class="hljs-string">&quot;//dl[@class=\&apos;personal_cen\&apos;]/dd/div/strong/text()&quot;</span>).extract()
        <span class="hljs-keyword">if</span> len(usernames) &gt; <span class="hljs-number">0</span>:
            username = usernames[<span class="hljs-number">0</span>]
        <span class="hljs-keyword">else</span>:
            username = <span class="hljs-string">&quot;NULL&quot;</span>
        <span class="hljs-keyword">return</span> username.strip()

    <span class="hljs-comment"># &#x63D0;&#x53D6;&#x5185;&#x5FC3;&#x72EC;&#x767D;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get_monologue</span><span class="hljs-params">(self, response)</span>:</span>
        monologues = response.xpath(<span class="hljs-string">&quot;//ul[@class=\&apos;requre\&apos;]/li/p/text()&quot;</span>).extract()
        <span class="hljs-keyword">if</span> len(monologues) &gt; <span class="hljs-number">0</span>:
            monologue = monologues[<span class="hljs-number">0</span>]
        <span class="hljs-keyword">else</span>:
            monologue = <span class="hljs-string">&quot;NULL&quot;</span>
        <span class="hljs-keyword">return</span> monologue.strip()

    <span class="hljs-comment"># &#x63D0;&#x53D6;&#x76F8;&#x518C;&#x56FE;&#x7247;&#x5730;&#x5740;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get_pic_urls</span><span class="hljs-params">(self, response)</span>:</span>
        pic_urls = []
        data_url_full = response.xpath(<span class="hljs-string">&apos;//li[@class=\&apos;smallPhoto\&apos;]/@data_url_full&apos;</span>).extract()
        <span class="hljs-keyword">if</span> len(data_url_full) &lt;= <span class="hljs-number">1</span>:
            pic_urls.append(<span class="hljs-string">&quot;&quot;</span>);
        <span class="hljs-keyword">else</span>:
            <span class="hljs-keyword">for</span> pic_url <span class="hljs-keyword">in</span> data_url_full:
                pic_urls.append(pic_url)
        <span class="hljs-keyword">if</span> len(pic_urls) &lt;= <span class="hljs-number">1</span>:
            <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;NULL&quot;</span>
        <span class="hljs-keyword">return</span> <span class="hljs-string">&apos;|&apos;</span>.join(pic_urls)

    <span class="hljs-comment"># &#x63D0;&#x53D6;&#x5E74;&#x9F84;</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get_age</span><span class="hljs-params">(self, response)</span>:</span>
        age_urls = response.xpath(<span class="hljs-string">&quot;//dl[@class=\&apos;personal_cen\&apos;]/dd/p[@class=\&apos;local\&apos;]/text()&quot;</span>).extract()
        <span class="hljs-keyword">if</span> len(age_urls) &gt; <span class="hljs-number">0</span>:
            age = age_urls[<span class="hljs-number">0</span>]
        <span class="hljs-keyword">else</span>:
            age = <span class="hljs-string">&quot;0&quot;</span>
        age_words = re.split(<span class="hljs-string">&apos; &apos;</span>, age)
        <span class="hljs-keyword">if</span> len(age_words) &lt;= <span class="hljs-number">2</span>:
            <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;0&quot;</span>
        age = age_words[<span class="hljs-number">2</span>][:-<span class="hljs-number">1</span>]
        <span class="hljs-keyword">if</span> re.compile(<span class="hljs-string">r&apos;[0-9]&apos;</span>).match(age):
            <span class="hljs-keyword">return</span> age
        <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;0&quot;</span>
</code></pre>
<h2 id="&#x5206;&#x5E03;&#x5F0F;&#x722C;&#x866B;&#x6267;&#x884C;&#x65B9;&#x5F0F;&#xFF1A;">&#x5206;&#x5E03;&#x5F0F;&#x722C;&#x866B;&#x6267;&#x884C;&#x65B9;&#x5F0F;&#xFF1A;</h2>
<h5 id="6-&#x5728;master&#x7AEF;&#x542F;&#x52A8;redisserver&#xFF1A;">6. &#x5728;Master&#x7AEF;&#x542F;&#x52A8;redis-server&#xFF1A;</h5>
<p><code>redis-server</code></p>
<h5 id="7-&#x5728;slave&#x7AEF;&#x5206;&#x522B;&#x542F;&#x52A8;&#x722C;&#x866B;&#xFF0C;&#x4E0D;&#x5206;&#x5148;&#x540E;&#xFF1A;">7. &#x5728;Slave&#x7AEF;&#x5206;&#x522B;&#x542F;&#x52A8;&#x722C;&#x866B;&#xFF0C;&#x4E0D;&#x5206;&#x5148;&#x540E;&#xFF1A;</h5>
<p><code>scrapy runspider youyuan.py</code></p>
<h5 id="8-&#x5728;master&#x7AEF;&#x7684;rediscli&#x91CC;push&#x4E00;&#x4E2A;starturls">8. &#x5728;Master&#x7AEF;&#x7684;redis-cli&#x91CC;push&#x4E00;&#x4E2A;start_urls</h5>
<pre><code class="lang-sh">redis-cli&gt; lpush youyuan:start_urls http://www.youyuan.com/find/beijing/mm18-<span class="hljs-number">25</span>/advance-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>-<span class="hljs-number">0</span>/p1/
</code></pre>
<h5 id="9-&#x722C;&#x866B;&#x542F;&#x52A8;&#xFF0C;&#x67E5;&#x770B;redis&#x6570;&#x636E;&#x5E93;&#x6570;&#x636E;&#x3002;">9. &#x722C;&#x866B;&#x542F;&#x52A8;&#xFF0C;&#x67E5;&#x770B;redis&#x6570;&#x636E;&#x5E93;&#x6570;&#x636E;&#x3002;</h5>
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